Here are some informations on how to develop the Salut à Toi project
You'll find the mercurial repository of SàT on http://repos.goffi.org/sat, satellite project are also available on http://repos.goffi.org
To clone the repository, use Mercurial: hg clone http://repos.goffi.org/sat. Check the wiki (see below) for installation instructions
The documentation is available on the wiki: http://wiki.goffi.org/wiki/sat (don't hesitate to improve it)
You'll also find a dedicated page for developers: http://wiki.goffi.org/wiki/SàT_développement
If you need help, you can also check the mailing list: http://lists.goffi.org
The best way to join us is on SàT's Jabber room: sat@chat.jabberfr.org